The characteristic of total factor productivity growth and technical change in the water and sewerage industry of England and Wales are examined within this article. Total factor productivity growth, technical change and the components of technical change are quantified using a time trend model....

This study estimates a variable cost model of the UK water industry. From this variable cost function, estimates of economies of scale and economies of capital utilisation and capacity utilisation are made. The data used in the study consists of 20 English and Welsh water companies. The results...